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y35w
10年前发布

objective-C从远程地址获取图片并修改尺寸

NSString* imageURL = [NSString stringWithFormat: @"http://theimageurl.com/?id=%@", [[resultsEntries objectAtIndex:0] objectForKey: @"image_large"]];  NSData* imageData = [[NSData alloc]initWithContentsOfURL:[NSURL URLWithString:imageURL]];    UIImage* image = [[UIImage alloc] initWithData:imageData];      // resize image  CGSize newSize = CGSizeMake(100, 100);  UIGraphicsBeginImageContext( newSize );// a CGSize that has the size you want  [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];      //image is the original UIImage  UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();  UIGraphicsEndImageContext();             imageHeight = image.size.height;  [imageMain setImage:newImage];  [imageData release];  [image release];